[branch-2.0](pick)Fix exchange operator can not aware end of file #25562

[wangbo]

Proposed changes

Issue Number: close #xxx

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[hello-stephen]

run buildall

[doris-robot]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 46.78 seconds
stream load tsv: 554 seconds loaded 74807831229 Bytes, about 128 MB/s
stream load json: 22 seconds loaded 2358488459 Bytes, about 102 MB/s
stream load orc: 64 seconds loaded 1101869774 Bytes, about 16 MB/s
stream load parquet: 32 seconds loaded 861443392 Bytes, about 25 MB/s
insert into select: 29.9 seconds inserted 10000000 Rows, about 334K ops/s
storage size: 17167096989 Bytes

[doris-robot]

TeamCity be ut coverage result:
Function Coverage: 38.23% (7931/20743)
Line Coverage: 30.04% (64125/213478)
Region Coverage: 29.26% (33219/113548)
Branch Coverage: 25.07% (17069/68072)
Coverage Report: http://coverage.selectdb-in.cc/coverage/0278702e6cabcaafd6cfe03ade73426e07f57e4e_0278702e6cabcaafd6cfe03ade73426e07f57e4e/report/index.html

[xiaokang]

#25562